Results showed that CD38 in HNSCC tissues was positively correlated with infiltrated CD3+ T cell (r=0.3441 p<0.001 Figure 4H), CD8+ T cell (r=0.3883 p<0.001 Figure 4I), CD4+ T cell (r=0.3417 p<0.001 Figure 4J), B cell (r=0.3649 p<0.001 Figure 4K) and NK cell (r=0.3060, r=3442 P<0.001 Figures 4L, M). Here, CD4 is linked to head and neck squamous cell carcinoma.